Oil range



1936- v w. c. LINDEIMANN ET AL ,5

OIL RANGE Filed Oct. 26, 1934 2 Sheets- Sheet l 2 Q v AHHHJH W t C 1NVENTOR$ M- I 9 1% m ATTORNEY.

Aug. 4, 1936. C UNDEMANN ET AL 2,049,506

' OIL RANGE Filed Oct. 26, 1934 2 Sheet-Sheet 2 WIN/WW"? I 'ATTORNEY.

o C. ti M Patented Aug. 4, 1936 PATENT OFFICE OIL RANGE Walter C. Lindemann and Gustav C. Lorenz, Milwaukee-Wis., assigncrs to A. J. Lindemann &

Hoverson Company, ratien of Wisconsin Milwaukee, Wis., a corpo- Application October 26, 1934, Serial No. 750,093

4 Claims.

The present improvements relate, in general, to cooking and heating equipment and more particularly to stoves or ranges employing liquid hydrocarbon fuel.

A primary object of the improvements is. to provide an improved oil range having a novel fuel supply means incorporated therewith. A further object is toprovide an oil range having a concealed fuel reservoir or tank, which is readily made accessible for refilling but disposed within the limits defined by the stove walls when in use. A structure designed to, employ'a glass tank within an oil range is a further desideratum.

Another object is to provide a fuel reservoir, either in the form of a main or sub-reservoir or both, which is movable for use into concealed position within the stove or to a position outside thereof-when thevreservoir requires replenishing. The provision of means for accomplishing the foregoing without interrupting the flow of fuel constitutes a further object of the improvements.

A further object is to provide a swivelly mounted member for supporting the fuel reservoir in a plurality of positions. Another object is to provide an adjustable fuel .feed pipe which is capable of adjustment for predetermining the oil level in the burners and preserving that level.

. A novel swinging reservoir support having a novel swivel joint, comprises. another objectfof the improvements. I

Other objects include the provision of an isolated compartment within the stove for housing the fuel reservoir, and partitioning it from the burners. Further objects and advantages :will be apparent to those skilled in the art upon reference to the accompanying specifications and drawings, in which- Y Fig. l is a side perspective view of an oil range embodying the present improvements, illustrating the fuel reservoirs in position for filling;

Fig. 2 is a view similar to that of Fig. 1, showing the reservoirs in concealed position with the closure ajar; I

Fig. 3 is a rear perspective view of the range with closure and main'reservoir removed;

I Fig. 4 is an enlargedview partly in section, illustrating the reservoir support.

Referring to the drawings, the range includes the casing I, having side walls 2 and 3, rear wall 4, and top 5 with the usual grid 6. The burners I may be of any convenient type, either with or without a wick, that illustrated being of the wickless type. V p

The wall 2 has an opening 8 and the rear wall 4 has an opening 9 which affords access to a chamber or compartment I defined by partitions II and 12. A closure I3 for opening 8 is provided so that the compartment will be concealed and the range will present a substantially uninterrupted end face. Otherwise the compartment may beopen at itsrear and bottom as illustrated.

The fuel supply system for burners 1' includes main reservoir or tank I4, sub-reservoir or tank l5, and a conduit or passage comprising a movable feed pipe and support I6 and a fixed pipe Hi all communicating to convey fuel from the reservoirs to the burners. y a

As illustrated, the main reservoir I4 is of glass and "has a bail forfacilitating removal of the reservoir for refilling. While this reservoir will not be described in detail, it. is of the well known removable bottle type having an automatic valve controlled mouth which opens to discharge fuel When the bottle is inverted and rested in subreservoir l5. A reservoir of this general character is described and illustrated in our United States Letters Patent No. 1,526,228 of February In prior devices, the sub-reservoir or tank 55 has usually been fixed'outside of the stove wall, so as to render the main reservoir I4 accessible for refilling and inspection of the fuel level. 'In the present improvements, these advantages are retained. but both reservoirs are designed for concealment in compartment H], as in Fig. 2, or for access, as in Fig. 1, withoutdisturbing the fuel supply to the burners.

To accomplish this end, the reservoirs are movably supported so that they may travel as a unit, into and out of the compartment through open ing. I2." While the sub-reservoir l 'may be mounted on a pivoted bracket with a separate pipe connection to the burners, chosen for illustration comprises a combined feed pipe and support I6 for the reservoirs, which communicate with pipe I1 and extends to a position where thesub-reservoir I5, mounted near its end, may swing freely into or out of compartment ID as shown in full and dotted lines in Fig. 3.

The improved swivel joint l8, shown in enlarged detail inFig. 4, includes a body member 20 having a screw threaded bore, which is welded or otherwise fixed in communication with pipe ll. The feed pipe and support I6 is externally screw threaded at its end for meshing with the threads of body member 20. These threads are provided along a substantial portion of the pipe and meme her, so that a rigid purchase is had therebetween, affording a sturdy bearing surface for withstanding the eccentric load of the two reservoirs.

Member 20 is counterbored to receive packing glands 2 I, and externally threaded to receive gland nut 22, which maybe rotated to effect a fluid-tight seal. This packing structure, affords a secondary or upper bearing along the shank of the pipe, thereby adding to the sturdiness of the pipe mounting and affording a smooth-working leak-proof swivel.

In use, the reservoirs I4 and I5 are in the posithe embodiment tion of Fig. 2, so long as they do not need replenishing. The door l3 may be opened to inspect the oil level from time to time, and when reservoir I4 must be refilled, the feed pipe, and both reservoirs are swung outwardly, about swivel l8, to filling position (Fig. 1). After the bottle has been removed, filled and replaced upon sub-reservoir IS, the whole may again be rotated to concealed position within the range, and the door latched in closed position. 7

There are numerous outstanding advantages of the present improvements which will be apparent to those skilled in the art. Heretofore, oil ranges of this character had their oil tanks protruding at the side of the stove, which has been not only unsightly, but also requires considerable room in the kitchen. Furthermore, the protruding bottle-presents an obstacle. which may soil ones clothing, or be inadvertently dislodged by passersby. These shortcomings are removed by the present structure.

Where concealed tanks have been employed, it has been found necessary to make them of anonfragile material such as metal. Such metal tanks require a volume gauge, and ultimately become quite dirty since their condition cannot be observed from day to day. A transparent tank was therefore deemed to be essential, on account of visibility and cleanliness.

The provision of a common member for supporting the reservoir and delivering fuel therefrom embodies functions of distinct value. The threaded connection at the swivel joint gives rigidity to the support, and serves to maintain a predetermined height for the pipe l6 so that it cannot be altered. This feature is Important in predetermining and preserving the proper level of oil in the burners 1.

The improved swivel construction also affords adjustability in both horizontal and vertical planes. The vertical adjustment is of value at the time the ranges are fabricated, since the burners of one range may be at a slightly different level from those of companion ranges. In such event, the use of a conventional swivel in the ranges as a group would invariably cause dispositionof the sub-tanks at levels which would unfavorably affect the burners they are serving. With the present structure the burners 1 and pipe I! may be installed, and then the feed pipe screwed down into the member 20 until the reservoir I5 is brought to the proper level of the burners. The same operation in fabricating the next range may position the pipe l6 at a somewhat diiferent elevation, but the same stock parts are employed. Accordingly, the one swivel design is suitable for use in ranges having burners at various levels and when once at the prescribed level, there for alteration thereafter. termines the elevation of the sub-reservoir l5, which is essential to successful operation of the burners. Even though swinging of the two reservoirs outwardly may cause a slight change in level due to the pitch of the threaded mounting, the return thereof to concealed position restores the sub-tank to the proper set level.

The swivel joint mounting of the present improvements affords greater ease of assembly and replacement of parts, than the conventional structures. The elongated threaded portions of will be no necessity set in the factory This fixes and prede the joint serve the double function of rigidity, and generous range of adjustment.

While the reservoir is concealed within the range, it is preferably protected from the heat of the burners by partitions I I and I2.

Various modifications within the scope of the improvements may be apparent to those skilled in the art and may be adopted without departing from the purview of the invention.

We claim:

1. A liquid hydrocarbon stove including a casing having a side wall with an opening therethrough, a burner within said casing, a fixed fuel supply pipe communicating with said burners and extending along the interior of said casing to a point adjacent said opening, a movable pipe having a free end and a fixed end, said fixed end being swivelly supported by and in communication with said fixed pipe, the free end of said movable pipe being swingable through said opening in the side wall of the casing and movable back and forth therethrough, an open-mouthed dispensing reservoir carried by said free end and normally disposed within said casing during use, and a removable main reservoir supported by said dispensing reservoir and fuel pipes.

2. A liquid hydrocarbon stove comprising a casing, a burner in said casing, a fuel conduit for said burner within said casing, said conduit including a swivelled upright portion swingable about a vertical axis, an auxiliary fuel reservoir communicating with and supported by said swivelled portion, a removable main reservoir supported on and in communication with said auxiliary reservoir, said casing having an opening adjacent said swivelled portion through which said reservoirs may be moved while suspended on said portion for recharging the main reservoir with fuel.

3. A liquid hydrocarbon stove comprising a casing, a burner in said casing, an auxiliary fuel reservoir swivelly supported within said casing and swingable about a vertical axis, a fuel conduit establishing communication between said auxiliary reservoir and said burner while the former is swung to positions inside and outside of said stove, a removable main reservoir supported on and in communication with said auxiliary reservoir, said casing having an opening adjacent said swivelly supported reservoir through which said reservoirs may be moved while supported from within the casing for recharging the main reservoir with fuel.

4. A liquid hydrocarbon stove comprising a casing, a burner in said casing, an auxiliary fuel reservoir normally within said casing during use and pivotally supported within said casing and swingable with respect thereto, a fuel conduit establishing communication between said auxiliary reservoir and said burner while the former is swung to positions inside and outside of said stove, a removable main reservoir supported on and in communication with said auxiliary reservoir, said casing having an opening adjacent said pivotally supported reservoir through which said reservoirs may be moved while supported from within the casing for recharging the main reservoir with fuel.

WALTER C. LINDEMANN. GUSTAV C. LORENZ. 

